step drill bit

Drill bit type:twist drill,auger drill,wedge-shape prismatic drill.
Installation of the spiral blade:single spiral blade,double spiral blade,half-dup

A drag bit is a drill bit usually designed for use in soft formations such as sand, clay, or some soft rock.

Used for rough turn, rough planning, and precision milling and for the surface processing of cast iron, colored metal and its alloys, as well as nonme

Specifications:
The following electric hammer drill bits are machined from chrome steel fitted with carbide insert brazed at a very high temperature

1Certified by ISO9001&API
2Used for water well, oil field
3IADC:114-117,127,437,517,617,637
4.type:3-26
5.delivery on time

pdc drill bit drill bit oil drill bit
1.Size rang from 3 7/8~26
2.Large inventory on hand
3.Low cost
4.Good quality and after-sale service

1.Competitive Price(larger order, lower price)
2.Perfect Quality Control System
3.Excellent Sevice
4.Large Business scale

1) ISO9001&API
2)Covers all IADC codes
3)Size:3 1/2"~26"
4)Used for oil well and water well

pdc bit / diamond pdc bit
1.Competitive Price(larger order, lower price)
2.Perfect Quality Control System
3.Excellent Sevice
4.Large Busines

1.Competitive Price(larger order, lower price)
2.Perfect Quality Control System
3.Excellent Sevice
4.Large Business scale

1.Competitive Price(larger order, lower price)
2.Perfect Quality Control System
3.Excellent Sevice
4.Large Business scale

mining rock bit
1.long service time
2. API & SGS
3. well drilling
4.best price and high quality...

1.Competitive Price(larger order, lower price)
2.Perfect Quality Control System
3.Excellent Sevice
4.Large Business scale

1. High quality
2. Fast delivery.
3. Rock Drill Parts can be offered
4. hight efficiency

1. High-quality and wear resistance
2. High-strength
3. Low prices
4. New and used tricone bits

1.size: from 3 3/4"-26"
2.ceitification:API & ISO
3.colour:red,blue,yellow
4.market:Europe,USA,Middle East
5.delivery time:within 7-10 days

a.certification API and ISO9001
b.established in one thousand nine hundred and eighty
c.supplier to America and Middle East

Spiral Flute HSS Step Drill Bit,Step Drill Bits

1Certified by ISO9001&API
2Used for water well, oil field
3IADC:114-117,127,437,517,617,637
4.type:3-26
5.delivery on time

1Certified by ISO9001&API
2Used for water well, oil field
3IADC:114-117,127,437,517,617,637
4.type:sealed and non-sealed
5.delivery on time

1. API&ISO 9001
2.Size: 95.3mm-660.4mm
3.high quality and best price
4.covers all IADC codes
5.more inventory

1Certified by ISO9001&API
2Used for water well, oil field
3.bits sizes range from 3 7/8'-26'
4.type:3-8blades

1Certified by ISO9001&API
2Used for water well, oil field
3IADC:114-117,127,437,517,617,637
4.type:3-8blades
5.delivery on time

1Certified by ISO9001&API
2Used for water well, oil field
3IADC:FC10435,NC201,,TC206,209 309
4.type:5-12
5.delivery on time

1. API&ISO 9001
2.Size: 95.3mm-660.4mm
3.high quality and best price
4.covers all IADC codes
5.more inventory

1Certified by ISO9001&API
2Used for water well, oil field
3.bits sizes range from 3 7/8'-8 1/2'
4..delivery on

1.Competitive Price(larger order, lower price)
2.Perfect Quality Control System
3.Excellent Sevice
4.Large Business scale

Size: from 3" to 26"
Certificate: ISO&API
Seal type:Metal or Rubber
Material:alloy/carbide
Use:Water well, oil well drilling

PDC drill bits are mainly used for Coal mining gas drainage hole, drainage hole, grouting hole, geological and hydrology drilling.

1)API&ISO9001
2)High quality with favorable price
3)Size you need
4)Your need is our target